[Pkg-games-ubuntu] [Bug 1559660] Re: Ironlake: Requests OpenGL 3.1 support

[Dawid Gan]

Upstream bug report:
https://github.com/supertuxkart/stk-code/issues/2488

I'm also surprised that OpenGL 3.1 works fine for ironlake :) Or maybe
it just uses software rendering for most effects? The
LIBGL_ALWAYS_SOFTWARE=1 works fine (but very slow) with OpenGL 3 either.

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Title:
  Ironlake: Requests OpenGL 3.1 support

Status in supertuxkart package in Ubuntu:
  New

Bug description:
  stk requests OpenGl 3.1 support on Ubuntu 16.04. Without it is working
  quite fine (a few effects are missing). The only things which affect
  gameplay are the solid "gum bubble" and the solid wind shadow effect.

  To my surprise, starting with the command line
  "MESA_GL_VERSION_OVERRIDE=3.1FC MESA_GLSL_VERSION_OVERRIDE=140
  supertuxkart " works flawlessly  (albeit a bit slow) :-)

  Perhaps either the 2 effects whose affects gameplay could be fixed, or
  the OpenGL 3.1/GLSL 1.4 version of the shaders are tried, regardless
  what the GPU driver is saying?

  About OpenGL 3 and ironlake in general I found
  http://www.phoronix.com/scan.php?page=news_item&px=MTMxMDQ .

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